This is more of a curiosity but do hongsloi require special water conditions for the eggs to hatch? The reason I ask this is I was told no and my water is tds 120 gh 7 kh 3 ph 7 - but the females frequently lay eggs with no hatching. Specifically this last female laid eggs in an open area (on sponge filter) where I could watch them and her. She successfully defended the eggs for 4 days but they slowly turned white and this morning the last of them had a heavy layer of fungus.
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So this begs the question either they are not getting fertilized or the water is not suitable hence this question.
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So this begs the question either they are not getting fertilized or the water is not suitable hence this question.